Posted: 03/07/2015 at 12:30
photinias do lose leaves, often a chunk of them at a time. Especially so the old leaves. I have to say in my experience they are "temperamental" plants. I have lost 2 plants after several years of growth.
acid soil is not essential, by the way. Ordinary soil ks fine.
i would prune back to buds or shoots. one thought though....is it dry there? Have you enjoyed a sunny dry summer so far, esp hot over recent couple of weeks? Photinias need some extra water at times so I would try this.
the 2 plants I had dropped their leaves and revealed increasing die back. One died. The other was put out of its...and my....misery!